Category: News

Newstungstenmolybdenummetals is a professional news and article media center for new materials, nano materials, chemical company, machinery, digital products, indusitrial products and more. Newstungstenmolybdenummetals has a professional editorial and researching team that provides qualified and authentic content on the internet. We also have laboratory and R&D resources for advanced Nano material / New material research and experiment. Our topics: nanoparticles, graphite powder, boron powder , zinc sulfide , nitride powder, Molybdenum disulfide,silicon powder,max phases powder, quartz powder, 3D printing metal powder, and so on.

Molybdenum Disilicide Powder Properties And Applications

Molybdenum diilicide This is an inorganic solid with the chemical name MoSi2, and it is gray. Molybdenum is disilicide, which is not soluble with most acids. However, it can be dissolved in nitric and hydrofluoric acids.

Molybdenum Diilicide Powder Properties

MoSi2 (also known as Dalton type intermetallic compound) is the intermediate phase in the Mo/Si binary alloy with the highest amount of silicon. Molybdenum Disilicide is both a metal and a ceramic, with high temperature performance.
Molybdenum Disilicide exhibits good high-temperature resistance to oxidation, with an oxidation resisting temperature of up to 1600°C.

Molybdenum Disilicide is conductive. At high temperatures, it can form an insulating layer of silicon dioxide to stop further oxidation. MoSi2 can be used to heat in an oxidizing environment at high temperatures (1700degC).

Molybdenum Diilicide Powder Applications

It is widely used as a component in high-temperature oxidation resistant coatings, electric heating elements and integrated electrode films. Other uses include structural materials, composite materials reinforcements, wear-resistant material and structural ceramic connections materials.

1) Energy industry and chemical industry. MoSi2 used for electric heating element of atomic device, gas heater, high temperature thermocouple, its protection tube. Smelting vessel crucible.

2) Microelectronics Industry: MoSi2 & other refractory metallic silicides (Ti5Si3, TaSi2, TaSi2, TaSi2, TiSi3, etc.) They are also important materials for interconnection and gates of large integrated circuits.

3) Aerospace Industry: Molybdenum Disilicide has been extensively and deeply researched, and is used as a coating material with high temperature anti-oxidation, particularly for turbine engine parts, such as blades or impellers, combustion chambers, nozzles, and sealing devices.

Automobile industry – Molybdenum Disilicide can be found in turbochargers, valves, spark plugs, and other parts of the engine.

Tech Co., Ltd. is a professional Silicide powder We are a chemical product supplier with 12 years experience. We accept payment by Credit Card, T/T (West Union), Paypal and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for a high quality molybdenum powder. Contact us Send an inquiry.

Molybdenum diilicide This is an inorganic solid with the chemical name MoSi2, and it is gray. Molybdenum is disilicide, which is not soluble with most […]

The Property And Application of Zinc Sulfide Powder

Zinc sulfide The chemical formula is ZnS. It is a white or off-white powder. Zinc Sulfide turns darker when exposed to sunlight.

Zinc Sulfide – A Properties of Zinc Sulfide

Zinc Sulfide is stable when in dry air. When in humid air over a period of time or in air that contains moisture, the zinc sulfate slowly oxidizes. Zinc Sulfide is insoluble in water but soluble in dilute acid.
Zinc sulfide, or zinc sulfide, is usually obtained through the reaction of hydrogen sulfide with zinc salt solutions. When a small quantity of Cu,Mn,Ag is added to the ZnS crystals as an activater, they can emit a variety of colors after illumination. Zinc Sulfide has many uses, including as an analytical reagent for paint, making paint, filling white and opaque glasses, preparing phosphor, and filling rubber.

Zinc Sulfide Application:

The zinc sulfide compound semiconductors are a very important material. They have been gaining attention for their excellent physical properties such as wide band gaps, high refractive indices, and high levels of light transmission.

Zinc Sulfide exhibits excellent electroluminescence and fluorescence effects. Nano-zinc has a unique effect. It has excellent properties in the areas of magnetism, electricity, optics, mechanicals, and catalysis. It is for this reason that research into nano-zincsulfide was a success. In 1994, Bhargava published a report stating that surface passivation nano-ZnS : Mn phosphor has an external quantum efficiencies of up to 18% and a fluorescence life of 5 orders of size shorter. ZnS has a much improved performance that opens up new applications for it.

Zinc sulfide may be used for making white pigments and glasses, luminous dust, rubber, paint, plastic, etc.

Tech Co., Ltd. is a professional Zinc sulfide powder We have over 12 years’ experience in the research and development of chemical products. You can contact us for high-quality zinc powder. Contact us Send an inquiry.

Zinc sulfide The chemical formula is ZnS. It is a white or off-white powder. Zinc Sulfide turns darker when exposed to sunlight. Zinc Sulfide – […]

Silver Sputtering Target

Silver is one of the most popular sputtering target materials due to its combination of chemical inertness and electrical conductivity. It is often used in the production of semiconductors and can also be found in solar panels, thin film batteries, and other electronic devices. However, silver is not the only metal that can be sputtered. Many other metals are commonly used as sputtering targets such as gold, palladium, and platinum. These sputtering targets offer a range of benefits including high-resolution coating, low-pressure operation, and low thermal stress.

American Elements manufactures and distributes high purity sputtering targets for use in semiconductor, chemical vapor deposition (CVD), and physical vapor deposition (PVD) display and optical applications. They are available in a variety of shapes, sizes, and configurations to accommodate the needs of various process equipment and applications. These sputtering targets are available monoblock or bonded, in planar or cylindrical sizes, and in diameters up to 820 mm with hole drill locations and threading. Additional features can be added such as grooves, beveling, and machining.

Manufacturer of sputtering targets in a wide variety of pure & refractory metals & oxides for magnetron sputtering, cathodic arc sputtering & evaporation. Capabilities include CNC machining, fabrication, pressing & grinding. Products are designed to meet a wide range of specifications & requirements including size, flatness, purity, density, grain size uniformity & composition uniformity. ISO 9000 compliant.

Silver is one of the most popular sputtering target materials due to its combination of chemical inertness and electrical conductivity. It is often used in […]

The preparation process of titanium carbide-based cermet

The titanium carbide-based Cermet is a heterogeneous material that is composed of a metal or alloy phase TiC. It combines high strength, high wear resistance, high temperature resistance as well as chemical stability and oxidation resistant ceramics. For titanium carbide-based Cermets, there are many different synthetic preparation processes. Each has advantages and drawbacks. In the actual production, processes that are suitable for different applications and price factors can be chosen. 1. Chemical Vapor Deposition (CVD)

This method is a technology that deposits a thick, solid coating on a surface using a gas-phase reaction. Due to the fact that the entire reaction in this method is based upon thermodynamics the CVD film offers good adhesion as well as coatingability. It also has a dense film layer and a high film-base adhesive strength.

This method has a disadvantage in that the processing temperatures are relatively high (generally, 9001200). The high temperatures cause the matrix of steel to soften. Vacuum quenching is required after the processing. The workpiece is easily deformed and the process is complex. The matrix material’s bending strength is reduced. The preparation process will produce harmful waste gases and waste liquids, which can easily cause industrial pollution. This is contrary to the green industry that the country advocates today.

2. Physical vapor deposition (PVD)

This method utilizes physical processes, such as thermal, sputtering and glow discharge discharge, to deposit the desired layer on the surface of substrate. This includes evaporation, sputtering and ion technology. The two latter PVD techniques are more widely used today for the preparation of ceramic coatings.

A PVD film’s brittleness makes it easy to peel and crack. It is also a linear process, with poor adhesion, and coating properties. The workpiece has to be rotated or swung during processing. This increases the difficulty in designing the vacuum chamber. There are problems such as an ineffective coating.

3. Liquid deposition

This is a chemical wet film-forming method. The basic principle is that by replacing the ligand between the ions of the solution, the hydrolysis balance movement of the metallic compound is driven. This results in a thin layer coating formed from the metal hydroxide or oxide. The method works under low-temperature/room temperature conditions. No heat treatment is needed, nor is expensive processing equipment.

The main disadvantage is that the solution concentration changes during and after the deposition because of the liquid phase reaction. Also, there are several factors which influence this reaction and its industrial stability.

4. Thermal Spraying

This technique involves heating a linear material or powder to a molten, semi-melted, state with a heat source, such as a flame or arc. High-speed droplets are formed and sprayed on the substrate, creating a coating. They can also be used as a protective layer, to restore or strengthen the surface properties of the material and to reduce the size of parts that have been reduced by wear, corrosion, or processing tolerances. Plasma spraying, flame spraying and arc-spraying techniques are all part of the method.

5. In-situ Synthesis

The second phase of reinforcement is synthesized without pollution and is distributed evenly, avoiding the problems associated with traditional powder metallurgy or smelting. The application of in-situ technology has expanded to include metal-based and cermet-based materials.

6. Other synthetic methods

Other synthetic methods include liquid EDM surface enhancement, sol-gel, high-density energie beam coating, melting and cast methods, powder metal methods, mechanical alloying, thermal spraying, self propagating high-temperature syntheses, melting and cast methods, and others. In industrial production, the choice of the preparation process for carbonized-based cermet can be made according to the conditions and requirements of each application.

(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer of super-high-quality chemicals & Nanomaterials with over 12 year’s experience. Titanium Carbide TiC is produced in high purity with fine particles by our company. Contact us if you need to.

The titanium carbide-based Cermet is a heterogeneous material that is composed of a metal or alloy phase TiC. It combines high strength, high wear resistance, […]

Boron Phosphide Used As Semiconductor Material And Optical Material

What property does boron phosphide have?

Due to different preparation methods, boron phosphide Has red transparent or dark red transparent crystals, black crystals, or soft, brown amorphous materials. The chemical properties are stable and it doesn’t dissolve in concentrated hydrochloric or nitric acids, nor does it dissolve in hydrofluoric or sulfuric acids.

Boron phosphide shares many properties with refractory substances. It has similar properties to diamond and boron-nitride, and is harder than silicon carbide. It can have an anti-oxidation property even when heated to a temperature between 800 and 10,000 degrees Celsius in the atmosphere. When boron is heated, the phosphorus in it disappears and a light grey residue forms. Boron-phosphide ignites at a cool temperature in chloride and at a warm temperature in bromine. It can decompose by most metals at red heat and burns brightly with oxygen.

How is boron phosphide used?

The boron film has a better mechanical property than germanium carbide. It also has a higher adhesion to diamond and is easier to deposit on large areas. In comparison with germanium carbide boron has better mechanical characteristics; in comparison with diamond boron thin layer is better adherent and more conducive to deposition over large areas; and compared to DLC boron has lower internal stress. In order to reduce the internal stress, boron is a good material for anti-reflection films for high-speed infrared window.

Researchers are recognizing the importance of boron oxide film as a protective layer for components exposed to harsh environments. Boron-phosphide film is a corrosion-resistant material that’s ideal for the infrared windows of submarine telescopes. Once the telescope window is out at sea, it will always be immersed in water. The window should not only have a high transmittance in order to maintain the sensitivity of the photoelectric sensor, but it must also resist corrosion caused by chemicals found in the seawater. The boron film is corrosion resistant and has good chemical resistance. It can protect the window from seawater erosion, ensuring the original optical performance.

Tech Co., Ltd. is a professional boron phosphide Over 12 years in research and development of chemical products. You can contact us for high quality boron-phosphide. Contact us Send an inquiry.

What property does boron phosphide have? Due to different preparation methods, boron phosphide Has red transparent or dark red transparent crystals, black crystals, or soft, […]

How Does the Heat-spreading Graphite Film Save an Over-heating Mobile Phone？

The heat dissipation problem of smart phones continues to be a major issue.
In general, thermal management for electronic products and smart phones depends on the use of micron-thick graphite sheets. Their excellent thermal conductivity allows them to neutralize heat produced by the surrounding components.

The production of micron thick films with high quality is not an easy task. It is a complex process. The material must be able to resist temperatures of up to 3200degC (5792-degF) in order to create a thin film with a thickness around several Microns. This complicated method, which uses polymers as a source material to produce graphite films, is energy-intensive.

Recently, researchers from King Abdullah University of Science and Technology KAUST in Saudi Arabia developed a more efficient method of producing these graphite cooling device.

The research team used the technique of chemical vapor deposition to grow nanothick graphite film (NGF) onto nickel foil. This technique uses nickel to catalyze the conversion of methane gases into its surface. graphite. It is important to note that the graphite formed on the surface is only 100 micrometers thick.

The team refers to these films as nano-thick (NGFs), and they are made by heating the material up to about 900degC. In this method, graphite film is created on both sides, and can be grown into sheets of up to 55 square centimeters. These films are easily extracted and can be transferred to another surface.

Alessandro Genovese is an expert in transmission electron microscopy (TEM). The researchers collaborated with him to capture a cross-sectional TEM image of NGF deposited on the surface of nickel. The researchers stated that the ability to observe the interface of graphite and nickel foils is a breakthrough that will help clarify the growth mechanism for these films.

NGF is not only a better and cheaper solution for materials that will be used in future mobile phones for thermal management, but it can also be used in solar cells, or for detection. Sensor material used for NO2 gas.

His research was published in the journals Nanotechnology and Science Reports.

(aka. Technology Co. Ltd., a trusted global chemical materials supplier and manufacturer has over 12 years experience in providing high-quality nanomaterials and chemicals. The powder that we produce is high-purity, with fine particles and low impurity levels. If you need lower, please contact our company.

The heat dissipation problem of smart phones continues to be a major issue. In general, thermal management for electronic products and smart phones depends on […]

The Properties And Application of Nano silicon carbide

Introduce yourself
High-frequency, high-power, low-energy consumption, and high temperature resistance are all characteristics of SiC nanomaterials. They also have good mechanical properties. SiC nanowires have a photoluminescence at room temperature, making them an ideal material to manufacture blue light-emitting diodes (BLEDs) and laser diodes. Recent studies show that micron-sized SiC Whiskers are used to reinforce ceramics, metals and polymer-based composites. These composite materials exhibit excellent mechanical properties. It is possible for composite materials to have higher strengths, hardnesses and aspect ratios. As reinforcement phase for composite materials, larger SiC one-dimensional Nanomaterials will enhance their performance. SiC one-dimensional Nanomaterials possess excellent characteristics, including low threshold field strength and high current density. The materials will be used for electric field emission. This feature allows them to be turned into new electronic lights of third-generation and used for image display. The role is huge. As research progressed, researchers found that SiC one-dimensional nanostructures had broad applications in hydrogen storage and photocatalysis as well as sensing.

You can find out more about this by clicking here.

1. Large surface area, good surface activity, low density, and excellent mechanical, electrical, and chemical properties. These include high hardness and wear resistance, and a high degree of self-lubrication. 1. Nano silicon carbide has high purity and a small particle size distribution. It also has a high surface area.
2. This product exhibits high thermal conductivity with low thermal expansion coefficient and good wear resistance.
3. The hardness of the material is between diamond and corundum, while the mechanical strength is greater than corundum.
4. Nano silicon carbide exhibits excellent thermal conductivity, and it is also a semi-conductor that can resist oxidation when heated to high temperatures.

Use

Manufacturing structural components such as sliding bearings (liquid fuel nozzles), high-power and low-frequency molds and semiconductor components for the metallurgy and chemical industries, and aerospace and energy industries.
2. Surface treatment of metals: cutting tools and molds. Heat resistant coatings.

3. Composite materials: Metal-based, ceramics-based and polymer-based composites.

Tech Co., Ltd. () is an experienced spherical-alumina manufacturer with over 12 year experience in chemical product development and research. If you need high quality spherical aluminum please feel free to contact us or send an enquiry.

The Properties And Applications of Silicon Nitride Ceramics

Silicon nitride The ceramics material is synthetic. In its structure, there is a strong covalent bond between nitrogen and silicon atoms. The silicon nitride is a ceramic with high hardness and strength. It also has good wear resistance.
Material industry has regarded silicon nitride materials as engineering ceramics with excellent comprehensive characteristics and that can be used at high temperatures.

The properties and applications of silicon-nitride ceramics

Normal temperature strength and high fracture toughness are characteristics of silicon nitride. They will maintain their strength at high temperatures. These are its main performances:

1. Material made of silicon nitride has a low coefficient of linear expansion, excellent thermal conductivity and thermal shock resistance.

2. The hardness is 99.5. This is only second to diamonds and BN.

It is also self-lubricating, wear-resistant and has a low friction coefficient.

4. It has a good mechanical property, high-temperature stability, high flexural and creep strength at high temperatures, and a good high temperature stability.

5.Silicon Nitride material is good at high temperature and has good insulation properties;

Silicon Nitride Ceramics: Applications

Si3N4 ceramics have been used widely in a variety of industrial fields due to its excellent properties.

Silicon nitride Ceramics are used by the machinery industry for turbine blades. They can also be found in high-temperature rollers, high speed cutting tools, permanent moulds, and high temperature bearings. ;

The metallurgical industries use silicon nitride ceramics as parts of thermal equipment like crucibles, aluminum reduction cells and burners.

Chemical industry uses silicon nitride as a corrosion and wear resistant ceramic for parts such as pump bodies, ball valves or burners. ;

In the electronic industry, silicon-nitride ceramics can be used for high temperature insulators as well as film capacitors.

As radomes and engines, silicon nitride is used. Aerospace industry

Ceramics made of silicon nitride are used by the nuclear industry to support and space nuclear reactors. They can also be used as carriers for fissionable materials.

Tech Co., Ltd. is a professional silicon nitride We are a ceramics company with 12 years of research and development experience in chemical products. We accept payment by Credit Card, T/T (wire transfer), West Union and Paypal. The goods will be shipped to overseas customers via FedEx or DHL.

You can contact us for silicon nitride ceramics of high quality. Contact us Send an inquiry.

Silicon nitride The ceramics material is synthetic. In its structure, there is a strong covalent bond between nitrogen and silicon atoms. The silicon nitride is […]

Overview of Nano Silicon

Nano silicon The term ‘nano silicon powder’ refers to particles of crystalline silica with a smaller diameter than 5 nanometers. Nano silicon powders are characterized by their high purity, fine particle size and uniform distribution. It has a high surface activity and large surface area. It also has low bulk density. Nano-silicon powder is a novel generation of optoelectronic semiconducting materials, with wide gap energy transistors. It is also an extremely powerful light source. The main uses of Nano-silica powder
The organic silicon polymer is made from organic matter.
The metal silicon is purified into polysilicon.
Metal surface treatment;
Use graphite or nanocarbon powder as anode in lithium batteries to increase their capacity;

Preparation Nano Silicon
Nano silicon is prepared by using coarse silicon in the current Nano materials. The millimeter scale coarse silicon is generally crushed to below 100 Microns, and then ground down to nanometers using a Sand Mill. In this method, mutual movement of the milling medium and material causes the milling medium to rub and impact the material, causing it to be crushed.
Application of nanosilicon in the floor industry
Nano-silicon The material is an inorganic, full-water mortar. This product is resin-based, and can therefore be used in conjunction with resin-based products. Nano-silicon products can penetrate concrete and are ideally matched to cement and quartz. This ensures a very strong adhesion with the original substrate, preventing delamination or cracking. It is a material that is indispensable for modern floor products.

(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 years experience in providing high-quality nanomaterials and chemicals. The Nano silicon Please note that the products produced by our company are of high purity and have low impurities. Please. Contact Us if necessary.

Nano silicon The term ‘nano silicon powder’ refers to particles of crystalline silica with a smaller diameter than 5 nanometers. Nano silicon powders are characterized […]

Boron Carbide and Silicon Can Make Body Armor More Impact

What Is Boron Carbide

Boron carbide, also known as black diamond, has a molecular formula of B4C, and is usually gray-black powder. It is one of the three hardest materials known and is used in tank armor, body shields and many industrial applications.

Improvement of High-grade Body Armor

“In the past 12 years, researchers have been looking for ways to reduce the damage caused by the impact of high-speed bullets on armor made of boron carbide.” said Dr. Kelvin Y. Xie, Assistant Professor in the Department of Materials Science and Engineering . “Our work has finally solved this unmet need. This is a step towards designing an advanced body armor that will defend against more powerful guns in battle.”

Boron carbide is called “black diamond” and its hardness is second only to cubic boron nitride. Unlike cubic boron nitride, boron carbide is said to be easier to mass produce than other armor materials such as silicon carbide, and is harder and lighter, making it ideal for bulletproof vests and other armor projects.

The Lack of Boron Carbide Body Armor

According to Texas A&M University, the main disadvantage of boron carbide is that it can be quickly damaged when subjected to a high-speed impact. Xie said in a statement: “Boron carbide is really good at stopping bullets moving at 900 meters per second, so it can effectively block most pistol bullets. But if it exceeds this critical speed, boron carbide will suddenly lose its trajectory. Performance has become less effective.”

Scientists know that high-speed vibration will cause a phase change in boron carbide, one of which will change its internal structure and present two or more physical states at the same time. The impact of the bullet transforms the boron carbide atoms from a systematically arranged crystalline state to a disorderly arranged glass state. This glass-like state weakens the material integrity of the contact area between the bullet and boron carbide.

Advantages of Boron Carbide Plus Silicon

Xie said: “When boron carbide undergoes a phase change, the glassy state creates a path for the propagation of cracks. Therefore, any local damage caused by the impact of a bullet can easily spread throughout the material and cause more and more damage. .”

Previous work using computer simulations predicted that adding small amounts of other elements might make boron carbide less brittle. To simulate the initial impact of a high-speed bullet, the researchers made controllable dents on a boron carbide sample with a diamond tip. Then, they used a high-power electron microscope to observe the microscopic damage caused by the impact.

Xie and his collaborators found that even if the silicon content is small, the degree of phase change has been reduced by 30%, which significantly reduces the damage caused by indentation. Although silicon can well enhance the properties of boron carbide, Xie said that more experiments are needed to know whether other elements can also improve the properties of boron carbide.

Tech Co., Ltd () is a professional boron carbide powder with over 12 years experience in chemical products research and development. If you are looking for high quality boron carbide powder, please feel free to contact us and send an inquiry.

What Is Boron Carbide Boron carbide, also known as black diamond, has a molecular formula of B4C, and is usually gray-black powder. It is one […]

Recent articles